US Patent: 13,845
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Metal Drill Drilling and Screw-Cutting Machine
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Patentee:
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Joel P. Heacock (exact or similar names) - Marlboro, Stark County, OH |
Manufacturer: |
Not known to have been produced |
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Patent Dates:
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Granted: |
Nov. 27, 1855 |
USPTO (New site tip) Google Patents
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Joel Havens "Vintage Machinery" entry for Joel P. Heacock
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Description: |
The improvement I present is for the purpose of boring, drilling or screw cutting, and consists in providing the mandrel carrying the bit, with a universal feed motion. I also provide the machine with a self-acting trip, for the purpose of retracting the mandrel and tool, with a more rapid motion than that of its advance. |
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